My Desktop PC cant hold a precise DATE/TIME control


  1. Posts : 101
    Windows 7 Home Premium 64 bit
       #1

    My Desktop PC cant hold a precise DATE/TIME control


    Windows 7 Home 64bit is my OS.
    The computer components are:
    - Asus Z87 Motherboard
    - Intel 4670k not overclocked
    - 2 x 8GB Kingston Blu DDR3 240 pin RAM
    - in 4 hours after re-setting time the time keeping shows a loss of 2 and 1/2 hours

    It has been happening in the last week or so.

    What could be happening?
      My Computer


  2. Posts : 12,012
    Windows 7 Home Premium SP1, 64-bit
       #2

    Slowly dying CMOS battery is one cause.

    Easily replaceable.
    Attached Thumbnails Attached Thumbnails My Desktop PC cant hold a precise DATE/TIME control-cmos-battery.jpg  
      My Computer


  3. Posts : 101
    Windows 7 Home Premium 64 bit
    Thread Starter
       #3

    Thank you ignatzatsonic

    It had briefly crossed my mind too. But a motherboard bought in mid 2013 seemed too young to fail. Is your image the precise model that I need to buy? or is it a generic image of a coin battery?
    Who sells these things? Home-Depot has a variety of coin batteries. Other than them, I have no idea.

    Thank you for responding.
      My Computer


  4. Posts : 9,606
    Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
       #4

    The CR2032 Battery has been used on Desktop Motherboards for many years.
    It can usually be found at major chain pharmacies for $3 or less.
    It is used in Blood Glucose meters for diabetics, also.
    Attached Thumbnails Attached Thumbnails My Desktop PC cant hold a precise DATE/TIME control-c-mos_battery_on_mb.jpg  
      My Computer


  5. Posts : 101
    Windows 7 Home Premium 64 bit
    Thread Starter
       #5

    Thank you both.
    So is it a matter of just replacing the new for the old depleted within a few minutes. Do I have to take any precautions not to lose data or something worse?

    Or is it just the simple swap with no other ulterior consequence?. Any issues with the CMOS?. No need to flash it right?

    Thank you again
      My Computer


  6. Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       #6

    No one knows how long a battery will last. I keep a couple three around all the time.
    I have seen brand new ones that were no good.
    When you replace the battery your bios will go to default. Unless you are over clocking your bios are at default already.

    You will have to set your time and date in the bios and in Windows 7.
      My Computer


  7. Posts : 101
    Windows 7 Home Premium 64 bit
    Thread Starter
       #7

    Thank you Layback Bear
      My Computer


 

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